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sparc/oprofile: Convert timer_stop() to use synchronize_rcu()

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Now that synchronize_rcu() waits for preempt-disable regions of code
in addition to explicitly marked RCU read-side critical sections,
synchronize_rcu() can be used in place of synchronize_sched().  This
commit therefore makes that change.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Robert Richter <rric@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <oprofile-list@lists.sf.net>
Cc: <sparclinux@vger.kernel.org>
This commit is contained in:
Paul E. McKenney 2018-10-30 15:45:04 -07:00
parent 78d125d338
commit 8fa9eb388e
1 changed files with 1 additions and 1 deletions
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2
arch/sparc/oprofile/init.c
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@ -53,7 +53,7 @@ static void timer_stop(void)
{
nmi_adjust_hz(1);
unregister_die_notifier(&profile_timer_exceptions_nb);
synchronize_sched(); /* Allow already-started NMIs to complete. */
synchronize_rcu(); /* Allow already-started NMIs to complete. */
}
static int op_nmi_timer_init(struct oprofile_operations *ops)